I can relate from this. I'm a guy. But it did cause stress in my relationships. I kept looking for validation online and from women online. I never accepted it from my wife. And i cheated many times. Make your decision but understand if you go there, it will hurt.
If you love your boyfriend you will not cheat on him. I was in the same situation and my long time girlfriend cheated. Several times. I never trusted her again and it wrecked our relationship.
Now I've been told shes been married several times and lives in some shithole little house. I own my business and will soon retire at 40 debt free.
It can be scary but sometimes choices you make early in life can put you on great or awful future paths. Choose wisely.